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Django dynamic model fields
...y constraint, which may be inefficient on some databases.
You will need to select one of the forks, since the official package is no longer maintained and there is no clear leader.
The usage is pretty straightforward:
import eav
from app.models import Patient, Encounter
eav.register(Encounter)
e...
“Keep Me Logged In” - the best approach
...lution
A better solution would be
User is logged in and remember me is selected
Generate Token & signature and store in cookie
The tokens are random and are only valid for single autentication
The token are replace on each visit to the site
When a non-logged user visit the site the signa...
How fast is D compared to C++?
...out printing code and replaced writefln with writeln
Changed imports to be selective
Used pow operator (^^) instead of manual multiplication for final step of calculating average
Removed the size_type and replaced appropriately with the new index_type alias
...thus resulting in scalar2.cpp (pasteb...
How to handle Handler messages when activity/fragment is paused
...iving an Intent(message) that was sent to your app in general. To increase selectivity on what type of intents your fragment can receive you can use an intent filter as in the example below.
An advantage of this approach is that the Intent(message) can be sent from everywhere whithin your app(a d...
base64 encoded images in email signatures
...tlook. I then used the signature editors "replace image" functionality to select a local file (instead of the base64 encoded image I had manually included). This seems to do what you mean. Thanks for sticking with me.
– Devil's Advocate
Dec 2 '16 at 16:30
...
Why would introducing useless MOV instructions speed up a tight loop in x86_64 assembly?
...Us can probably apply several optimization approaches in parallel and then select the one at the end that provides the best speedup. The extra instructions may be biasing the CPU to use one optimization path that is better than others.
The effect of the extra instructions probably depends on the C...
Many-to-many relationship with the same model in rails?
...ails generates in the log file. You'll find something like the following:
SELECT * FROM "posts"
INNER JOIN "post_connections" ON "posts".id = "post_connections".post_b_id
WHERE ("post_connections".post_a_id = 1 )
To make the association bi-directional, we'd have to find a way to make Rails OR the...
Intellij IDEA show javadoc automatically
...s)
It's only available when you press CTRL+SPACE It's more usable if you select the pin icon when it popups. The documentation window will be added to the tabs on the right. Later on I recommend to resize the window and to uncheck the Pinned property.
On mouse hover:
File -> Settings -> E...
Eclipse shortcut “go to line + column”
...rl+L Jump to Line Number. To hide/show line numbers, press ctrl+F10 and select 'Show Line Numbers'
There is no way to go to a particular column according to my knowledge.
On OSX, the shortcut is ⌘ + L
It you want more short-cuts, refer http://www.shortcutworld.com/en/win/Eclipse.html
...
When should I use malloc in C and when don't I?
...y, but of course you don't know the file's size in advance, since the user selects the file on the spot, at runtime. So basically you need malloc when you don't know the size of the data you're working with in advance. At least that's one of the main reasons for using malloc. In your example with a ...